Glass-blowing machine.



B. 0. CHAMBERLIN.

GLASS BLOWING MACHINE. APPLICATIOf FILED )ULY 24, I9 08. RENEWFD OCT.29. 1910. [137,304, Patented Apr. 27, 1915.

5 SHEETS-SHEET I.

N V E N T OR Bey lam G/qomZ/ei'! m1 Altos! B. D. CHAMBERLIN.

GLASS BLOWING MACHINE.

APPULAIION FILED suLY24,19oa. nznzwio 0cT.29.19l0.

Patented Apr. 27, 1915 5 SHEETS-SHEET 2- /Vi 151V? OR Wi /fizz.

B- D'- CHAMBERLIN.

GLASS BLOWING MACHINE.

APPUCATION mm IULY 24, 1908. RENEWED OCT. 29. 1919.

1, 1 37,304. Patented Apr. 27, 1915.

5 SHETSSHEET 3.

INVENTOR B. D. CHAMBERLIN.

GLASS BLOWING MACHINE.

APPLICATION FILED IULY 24. 1908. RENEWED oct, 29. mo,

Patented Apr. 27, 1915 B. D. CHAMBERLIN GLASS BLOWING MACHINE.APPLICATION FILED IULY24, 1908. RENEWED OCT. 29, 1910.

1,137,304. Patented Apr. 27, 1915.

5 SHEETS-SHEET 5.

UNITED STATES PATENT. orrron.

BENJAMIN D. CHAMBERLIN,

OF WASHINGTON, DISTRICT OF COLUMBIA. ASSIGNOR TO EMPIRE MACHINE COMPANY,OF PORTLAND, MAINE, A CORPORATION OF MAINE.

GLASS-BLOWING MACHINE.

Specification of Letters Patent.

Patented Apr. 27, 1915.

Application filed July 24, 1908, Serial No. 445,252. Renewed October 291910. Serial No. 589,786.

b all when 1'! mm concern:

Be it known that I, BEJJAMIN D. CHAM- nnnux, a citizen of the UnitedStates of America, and a resident of \Vashington, Dis trict of Columbia,have invented certain new and useful improvements in Glass-Blowinglvlachincs, of which the following is a specilication.

My invention relates to a machine for performing certain operationsattendant upon the production of blown glass articles. In the usualprocesses employed for the production of such articles a suitablequantity of glass having been gathered upon the end of a blow-pipe, itreceives a preliminary shaping by marvering or swinging, and is theninserted in a separable mold, which is closed thereon, andis blown whilelocated within the mold by admitting air to the in terior thereofrotation being simultaneously imparted to the blowpipc or mold inrespect to each other for the purpose of eliminating the impremion whichwould otherwise be made by the joint of the mold.-

For these purposes my invention contour plates amachine embodying avertical ro tary shaft from which motion is communicated to severalparts adapted to perform the operations of opening and closing the mold,of rotating the blow-pipe and of con trolling the admission of airtheretp. In addition, the same shaft performs the further function ofimparting motion to mechanism which after the article has been blownupon the pipe removes such pipe from the machine, thus dispensing withthe presence, at the machine, of an operator for that purpose andfurtl'iermore causes the necessary manipulation in the air head topermit this. It is not essential however shaft perform these last namedoperations, as the same can be performed by any appropriate mechanismproperly synchronized in respect to the driving power of the other partsof the machine. This removal of the blown article by machine is animportant feature of my invention in that it dispenses with one operatoraround the blowing point, with the confusion tending thereon and it willbe understood that as far as such feature is concerned it inay be apliedto a variety of machines differing in construction from that disclosedherein.

My invention further consists in the construetion. combination andarrangement of that the vertical the several parts of which it iscomposed as will be hereinafter more fully described and claimed.

Referrin now to the accom ain'in drawings, in which corresponding partsare dcsigopen. Fig. 5 is a plan elevation of the blowmg head and airvalve mechanism. Fig. 6

is a rear elevation of the mold and the mold closing links. Fig. 7 IS ahorizontal section on lines .r a of Fig. 3.

Fig. 8 is a detail sectional view of the air head and valvellltlClltilliSlIl. Fig. 9 is a plan of the removing ,mechanism, the jawsbeing shown in their open position. Fig. 10 is a similar view showingthe jaws closed upon the blowpipe. Fig. 11 is a section through theparts shown in Figs. 9 and 10. Fig. 12 is a perspective view showing theseveral parts of Figs. 9-1U and 11 as separated for the purpose ofillustration. Fig. 13 is a detail view of the clutch controllingmechanism. Fig. ll is a prospective of the blow-pipe rest. Fig. 15 is aperspective of the upper blowpipe guide. Fig. 16 is a perspective of theparts of the head of the machine.

The base 1 is in the form of a truck upon which the various parts aremounted -and whereby the machine may be readily removed fromplace toplace. the said base having a cooling tank '2 at its forward end andprovided in the rear thereof with various bearings for the drivingmechanisms as will be hereinafter described, a bifurcated standard 3arising from the top of the base immediately in the rear of the tank. Inthe rear of the standard the base carries a suitable motor 4 bypreference electric, get-red to the shaft 3 nlounted in the base. A wormi6 upon the-i aft 5 gears with the wormwheel 7 loosely mounted on tirelongitudinal shaft- 8 carried in bearings 9 in the base, the forward endof the Said shaft having a each secured beveled gear 10, keyed thereto.A clutch collar 11 is splined on the shaft 8 and is provided withengaging teeth to engage corrcspondingteeth upon the wheel 7 when movedrearwardly on the shaft, its movement in this direction being controlledby lever 12 hereinafter referred to, the clutch engaging end of thelever being normally drawn toward the front of the machine by a spring13. The collar 11 has upon its forward face a seat 14 on one of itssides, in which a hardened steel late 15 carried on the forward bearing9 of the base normally projects. When'the collar is rotated, however,from its normal position, suchplate bears upon the flat portion of thefront face of the collar and thereby holds the collar in clutchengagement with the wheel 7. Rigidly attached to the upper end of the bifurcated standard 3 and risin therefrom is the hollow cylindrical stanard 16 from which .various instrumentalities hereinafter to be describedare supported.

The main vertical drive shaft 17 is partly located within the hollowstandard, its upper end projecting from the head 18 there- 'of, whichforms the upper bearing for the said shaft, while its lower end extendsdownwardly within the bifurcation of the bifurcatcd standard and iscarried by a bearing 19 at the bottom of the base, the shaft havingrigidly secured thereto a beveled gear 20 engaging with the beveled gear10 upon the horizontal shaft 8, whereby it will be inter mittentlydriven according to the position of the clutch. I

The shaft 17 carries thereon within the bifurcation of the bifurcatedstandard a cylinder 21 having on the periphery thereof two cam grooves2223. A rod 2-1 guided in a bearing 25 at the top of the bifurcatedstandard and in a bearing 25" in the base,

is located immediatelyin front of the cylinder 21 and has mountedthereon a roller 26 engaging the lower cam groove 22, the rod havingupon its forward face a bracket 26, to which is pivoted the upper endsof each of a pair of links 27. p

Within the tank 2 is secured the longitudinal shaft 28 on which ispivoted the parts of a two part mold 29, by means of cars 29 dependingfrom the bottom of the mold parts. The lower ends of the links 27 are toone of the parts of the mold to one side of the pivotal point thereofupon the shaft, so that a lowering of the said links results in thelowering of the mold parts around the shaft 28, while a lifting of thelinks results in :1 raising of the'mold parts around the said shaft. Thecam groove 22 is so shaped and proportioned that at one time (seelig. 1) the mold parts will be in their hori z'ontal-position, in whichthey will be immersed in the cooling liq uid in the tank 2 and will onthe rotation of the cylinder 21. be turned upon the horizontal shaft toclose F igs. 2 and 3) remaining in this closed position for a propertime and being then subsequently opened, the latter corresponding to theposition in which the clutch controlling mechanism has per-' mi tted theclutch to open and the main shaft 17 driven thereby to be arrested.

Formed upon the head 18 of the hollow i parts of the head being securedin the de- 4 sired position dependent upon the lengthhf the blow-pipeemployed by means of at set screw 31. The lower section 31 of'the headand the lower part of the upper section" 31" thereof are hollow, thelast named section being provided with a transverse chanhel 31 by whichinterior of the head to "the blow-pipe upon head being annularly groovewhich it is seated, the said up er an of the" d din 'ufiii' section 31be i air is admitted .through the the aperture of the extension. Theinterior of the extension 30 is in communication with a source of airunder pressure, by means of the pipe 30 and such interior 1s 1n com!'munication with the air head guiding'aper ture of the extension bymeans of theair passage 33, in which is interposed the'air Fig. 8. Thisvalve is mounted 'withinthe extension and has upon its upper end a (upvalve 34 all (if which is clearly shown in" pet lever 35 normallythrowninto. osition to close the valve by means of a lea spring 35, thetappet terminating in a'n outwardly extending roller 35".

Upon the upper end of the shaft' '17 is mounted the gear wheel 36, whichgears with the pinion 37 upon the upper end of the upper part of thetelescopic air head. The gear wheel also carries upon its lower face andinside of the rim thereof a cam track 38 upon which the roller of thetappet lever 35 is adapted to bear. the said cam track being so shapedas to actuate the air valve through said lever and to thereby admit airto the blow head at such times and in such quantities as the articlebeing blown may demand. To permit the adjustment of the cam track fordifferent articles it by preference consists of a flexible band havingprojecting from the outen iface thereof a series of threaded studs 38taking in lugs 3'6 upon the bottom of the spokes of wheel 36 and beingadjustable in respect thereto by means of lock nuts .38". The upper faceof the rim of the wheel 36 is provided with a raised cam flange 39,which after the termination of the blowing period moves under the springand which in the normal position of rest of the machine (Fig. 8) liesbeneath such spring, thus lifting the air head and holding it lifted. Atother times the cam is moved from underneath the spring and the air headis caused to descend by the pressure thereof firmly seating it upon theblow-pipe which may be in the machine, the raised position of theblowhead corresponding approximately to the period the molds are opened.

The clutch lever 12 extends upwardly in front of the standard of themachine and haspivoted thereto at 12 a forwardly extending horizontalend 12 on which is adjustably mounted a plate 40 having an open slot lin the side thereof, in which the blowpipe may be inserted, the platehaving adjacent to the slot anti-friction rollers upon which a collar 41provided upon each of the blow-pipes 41, rests, the plate there foreserving as the guide for the lower end of the blow-pipe.

The hollow standard 16' has forwardly projecting from its face near theupper end thereof a stop arm 42 provided with a notch 42 in its forwardend against which the blow-pipe may be pressed by the attendant, thualining it with the air head which at the time of the insertion of theblow-pipe is lifted.

Between the arm 42 and the plate 40 and projecting from the hollowstandard 16 is mounted certain apparatus for removing the blow-pipe withthe blown article thereon, such mechanism consisting essentially ofparts adapted at proper periods to automatically close upon theblow-pipe and remove the same horizontally from its position above themold, and at other times being free from the blow-pipe to permit itsrotation by the air head in the manner before described. The removingapparatus as shown is as follows: Collars 43 are mounted upon theexterior of the hollow standard 1i") and between them is contained asleeve 44 also mounted upon the said standard and capable of rotation inrespect thereto, the said sleeve having projecting therefrom spokes 4-5.Adjacent to each of the spokes and also sleeved upon the hollow shaftare the arms 46. As the spokes and arms with the parts carried therebyare merely duplicated to insure'a firmer grip upon the pipe, only oneset will be described in detail.

To the end of the bar 4-6 is pivoted-by the pin 47, a pair of jaws 48,substantially the shape as shown in Figs. 9 to 152, the jawsbeing'oppositely disposed in respect to the pivotal point, and eachhaving on opposite sides of such point a pin 49 projecting from one sidethereof and contained in an aperare in their normal position (Fig. 9). Aa

cam groove 5] is formed in the sleeve 4% and. receives a roller 52mounted on the upper end of a link 53, the lower end of which isprovided with a roller 54: engaging the cam groove lli in the cylinder21 fast upon the vertical driving shaft 17, the position and relation ofthe several cams being such that before the complete closing of themolds the spokes 45 and arms 46 will be. in their normal position andthat this position will be maintained during the whole period the moldsare closed and until after the molds are opened, when the downwardmotion of the link 53 will rotate the sleeve 41 upon the hollow standardand thereby swing the spokes and arm toward the dotted position shown indotted lines in Figv 4. in this movement the spokes 15 will first swingand will by means of the pins -19 swing the jaws upon their pivots 47thus closing the same upon the pipe contained within the recess of thejaws. this being due to the inertia of the arms 46 upon which the jawsare carried. As soon as the jaws have engged the pipe the spokes. willby their connection to the said arms through the pins 49, jaws 48 andpivots 4T, drag the arms with them and at the same time will remove theblowpipc from over the mold, the mold having been opened and the airhead lifted at this time. The parts having swung to the position shownin dotted lines in Fig. 4 the direction of rotation of the sleeve 4%will be reversed and the spoke 45 will then start to swing re p versely.this by reason of the inertia or by the friction of the arm 46 openingthe jaws and releasing the blow-pipe which may then 1 be received by anattendant or a supplemental machine designed to perform varioussubsequent operations, and will then, by the continued reverse movementof the said spokes restore the arms to their normal position at whichtime a fresh blow-pipe with the pre-gathered glass thereon may beinserted.

It will be seen that the operation of the machine is entirely automaticsave the insertion of the blow-pipe within the machine and perhaps thestarting of the machine. This latter can either be accomplished by theoperator, after inserting the blow-pipe, shoving the pipe down upon theplate 40 and thus rocking the clutch lever 12 to engage the clutch, orit may be accomplished by the weight of the blow-pipe itself. In eithercase, the clutch cannot open after the initial movement of the collaruntil the collar has made a complete revolution and brought the recess14 thereof opposite the plate 15. If the throwing in of the clutch isdependent upon the weight of the blow-pipe the clutch will still performthis operation in the manner before described, for the reason thatduring the operation of the collar toward its normal position afterhaving been started, the blow-pipe will have been removed from themachine by means of the removing apparatus before described, so thatwhen the collar will have completed its revolution there will be noblow-pipe upon the plate of the clutch lever tending to hold the clutchclosed.

Having thus described my invention what I claim and desire to secure byLetters Patent is 1. In a glass-blowing machine, the combination with amold opening mechanism and an air-supply mechanism, of a motor fordriving the same, a clutch interposed between the said motor and themold and air zontal plane,

mechanisms, and a clutch actuating lever forming a vertically movableblow-pipe support.

2. In a blow-pipe removing mechanism for a glass blowing machine, thecombination of a horizontally swinging arm, jaws pivoted to the said armand adapted to encircle the blow-pipe and driving means for the arm towhich the said jaws are connected to the sides of their pivotal point,said driving means being synchronized in respect to the blowing machine.

3. The combination with a mold closing and opening mechanism, of avertically movable blow head, an arm movable in a horipipe removing jawspivoted to the said arm, and a driver for the arm to which the said jawsare secured to the sides of their pivotal points and mechanism foractuating the several mechanisms in a predetermined order.

4. The combination with a mold closing--' and opening mechanism, of avertically movable blow head, an arm movable in a horizontal plane, piperemoving jaws pivoted to the said arm, a driver to which the said jawsare secured to the sides of their pivotal points and a shaft foractuating the several mechanisms in a predetermined order, and a clutchfor the said shaft closed by the weight of the blow-pipe.

5. In a glass-blowing machine, the combination with a vertical shaft, ofa separable mold, a cam track on the said shaft for opening and closingthe said mold, a vertically movable blowing head actuated by the saidshaft, a horizontally swinging arm, jaws pivoted to the said arm. aspoked collar moving concentrically with the said arm, the jaws beingattached to the spoke of the said collar, and means for imparting areciproeating rotary motion to the said collar from the said shaft.

6. In a glass blowing machine the combination with a non-traveling moldof a nontraveling air head, and a non-traveling blow-pipe support, of anintermittently movable blow-pipe carrier ha ring a position of rest overthe mold and normally free from the blow-pipe and means for o ening themold and moving the carrier with the blowpipe thereon to remove theblown article away from the mold.

BENJAMIN D. CHAMBERLIN.

Witnesses:

GOLDEN BROWN V. M. Donsm.

